1970954864649 has 27 divisors (see below), whose sum is σ = 2914950150957. Its totient is φ = 1283294541816.

The previous prime is 1970954864617. The next prime is 1970954864657. The reversal of 1970954864649 is 9464684590791.

The square root of 1970954864649 is 1403907.

It is a perfect power (a square), and thus also a powerful number.

1970954864649 is a `hidden beast` number, since 1 + 9 + 70 + 9 + 548 + 6 + 4 + 6 + 4 + 9 = 666.

It is not a de Polignac number, because 1970954864649 - 2⁵ = 1970954864617 is a prime.

It is a super-3 number, since 3×1970954864649³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1970954864149) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 181098562 + ... + 181109444.

Almost surely, 2^{1970954864649} is an apocalyptic number.

1970954864649 is the 1403907-th square number.

1970954864649 is the 701954-th centered octagonal number.

It is an amenable number.

1970954864649 is a deficient number, since it is larger than the sum of its proper divisors (943995286308).

1970954864649 is an frugal number, since it uses more digits than its factorization.

1970954864649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21858 (or 10929 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 72.

The spelling of 1970954864649 in words is "one trillion, nine hundred seventy billion, nine hundred fifty-four million, eight hundred sixty-four thousand, six hundred forty-nine".